Thursday, June 7, 2012

Fenestra Ovalis

The fenestra ovalis (oval window) is a tiny aperture which links the middle ear with inner ear; covered by a vibrating membrane, the fenestra ovalis is a communicating door through which acoustic vibrations picked up by the tympanic membrane are transmitted from the ossicles to the cochlea. The stapes (stirrup), one of the three tiny bones that make up the ossicles, is attached to the fenestra ovalis.